Description: metal lumps or ingots, silver grey with metallic lustre, easily oxidizable in air.
说明：金属锭或块，银灰色，有金属光泽，在空气中易氧化。
Physical features: crystal bar in silver grey lustre without non-metal inclusion and blue film on the surface or the inner.
物理状态：高纯锆为银灰色棒状晶条，具有金属光泽。其内部和表面不带有非金属夹杂物和蓝膜。
A soft metal, it has a silvery lustre when freshly cut but reacts rapidly with air.
锶是软金属，新切开的表面有银白色金属光泽，但一接触空气会迅速反应。
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